155020392955 has 32 divisors (see below), whose sum is σ = 195667104384. Its totient is φ = 117675503616.

The previous prime is 155020392929. The next prime is 155020392979. The reversal of 155020392955 is 559293020551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155020392955 - 2¹¹ = 155020390907 is a prime.

It is a super-2 number, since 2×155020392955² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31397247 + ... + 31402183.

It is an arithmetic number, because the mean of its divisors is an integer number (6114597012).

Almost surely, 2^155020392955 is an apocalyptic number.

155020392955 is a deficient number, since it is larger than the sum of its proper divisors (40646711429).

155020392955 is a wasteful number, since it uses less digits than its factorization.

155020392955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 155020392955 in words is "one hundred fifty-five billion, twenty million, three hundred ninety-two thousand, nine hundred fifty-five".