77233117145055 has 16 divisors (see below), whose sum is σ = 123573251912544. Its totient is φ = 41190907650560.

The previous prime is 77233117145021. The next prime is 77233117145111. The reversal of 77233117145055 is 55054171133277.

It is a happy number.

It is not a de Polignac number, because 77233117145055 - 2³⁷ = 77095678191583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77233117144989 and 77233117145007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068267 + ... + 12599363.

It is an arithmetic number, because the mean of its divisors is an integer number (7723328244534).

Almost surely, 2^{77233117145055} is an apocalyptic number.

77233117145055 is a deficient number, since it is larger than the sum of its proper divisors (46340134767489).

77233117145055 is a wasteful number, since it uses less digits than its factorization.

77233117145055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020026.

The product of its (nonzero) digits is 3087000, while the sum is 51.

The spelling of 77233117145055 in words is "seventy-seven trillion, two hundred thirty-three billion, one hundred seventeen million, one hundred forty-five thousand, fifty-five".