155226902831 has 32 divisors (see below), whose sum is σ = 209153376768. Its totient is φ = 111256986240.

The previous prime is 155226902819. The next prime is 155226902891. The reversal of 155226902831 is 138209622551.

It is a cyclic number.

It is not a de Polignac number, because 155226902831 - 2³⁴ = 138047033647 is a prime.

It is a super-2 number, since 2×155226902831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155226902891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9305 + ... + 557261.

It is an arithmetic number, because the mean of its divisors is an integer number (6536043024).

Almost surely, 2^155226902831 is an apocalyptic number.

155226902831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155226902831 is a deficient number, since it is larger than the sum of its proper divisors (53926473937).

155226902831 is a wasteful number, since it uses less digits than its factorization.

155226902831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548271.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 155226902831 in words is "one hundred fifty-five billion, two hundred twenty-six million, nine hundred two thousand, eight hundred thirty-one".