155254222340 has 96 divisors (see below), whose sum is σ = 409274449920. Its totient is φ = 48235879296.

The previous prime is 155254222339. The next prime is 155254222349. The reversal of 155254222340 is 43222452551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 155254222340.

It is not an unprimeable number, because it can be changed into a prime (155254222349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207652 + ... + 1330011.

It is an arithmetic number, because the mean of its divisors is an integer number (4263275520).

Almost surely, 2^155254222340 is an apocalyptic number.

155254222340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155254222340 is an abundant number, since it is smaller than the sum of its proper divisors (254020227580).

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

155254222340 is a wasteful number, since it uses less digits than its factorization.

155254222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537721 (or 2537719 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 155254222340 its reverse (43222452551), we get a palindrome (198476674891).

The spelling of 155254222340 in words is "one hundred fifty-five billion, two hundred fifty-four million, two hundred twenty-two thousand, three hundred forty".