90155336770 has 64 divisors (see below), whose sum is σ = 171574640640. Its totient is φ = 34059916800.

The previous prime is 90155336767. The next prime is 90155336809. The reversal of 90155336770 is 7763355109.

It is a super-2 number, since 2×90155336770² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90155336770.

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, 3123766 + ... + 3152494.

It is an arithmetic number, because the mean of its divisors is an integer number (2680853760).

Almost surely, 2^90155336770 is an apocalyptic number.

90155336770 is a deficient number, since it is larger than the sum of its proper divisors (81419303870).

90155336770 is a wasteful number, since it uses less digits than its factorization.

90155336770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29011.

The product of its (nonzero) digits is 595350, while the sum is 46.

The spelling of 90155336770 in words is "ninety billion, one hundred fifty-five million, three hundred thirty-six thousand, seven hundred seventy".