155101543040 has 32 divisors (see below), whose sum is σ = 370789627860. Its totient is φ = 62040616960.

The previous prime is 155101543031. The next prime is 155101543123. The reversal of 155101543040 is 40345101551.

It can be written as a sum of positive squares in 2 ways, for example, as 145514783296 + 9586759744 = 381464^2 + 97912^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 155101542994 and 155101543012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121172441 + ... + 121173720.

Almost surely, 2^155101543040 is an apocalyptic number.

155101543040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155101543040 is an abundant number, since it is smaller than the sum of its proper divisors (215688084820).

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

155101543040 is an equidigital number, since it uses as much as digits as its factorization.

155101543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242346180 (or 242346168 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 155101543040 its reverse (40345101551), we get a palindrome (195446644591).

The spelling of 155101543040 in words is "one hundred fifty-five billion, one hundred one million, five hundred forty-three thousand, forty".