154555210101040 has 320 divisors, whose sum is σ = 458555643417600. Its totient is φ = 47161961054208.

The previous prime is 154555210100969. The next prime is 154555210101043. The reversal of 154555210101040 is 40101012555451.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 154555210100987 and 154555210101005.

It is not an unprimeable number, because it can be changed into a prime (154555210101043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98160316 + ... + 99722404.

It is an arithmetic number, because the mean of its divisors is an integer number (1432986385680).

Almost surely, 2^{154555210101040} is an apocalyptic number.

154555210101040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154555210101040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229277821708800).

154555210101040 is an abundant number, since it is smaller than the sum of its proper divisors (304000433316560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154555210101040 is a wasteful number, since it uses less digits than its factorization.

154555210101040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562692 (or 1562686 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 34.

Adding to 154555210101040 its reverse (40101012555451), we get a palindrome (194656222656491).

The spelling of 154555210101040 in words is "one hundred fifty-four trillion, five hundred fifty-five billion, two hundred ten million, one hundred one thousand, forty".