465778155 has 64 divisors (see below), whose sum is σ = 814302720. Its totient is φ = 226461696.

The previous prime is 465778153. The next prime is 465778177. The reversal of 465778155 is 551877564.

It is not a de Polignac number, because 465778155 - 2¹ = 465778153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (465778153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1248549 + ... + 1248921.

It is an arithmetic number, because the mean of its divisors is an integer number (12723480).

Almost surely, 2^465778155 is an apocalyptic number.

465778155 is a deficient number, since it is larger than the sum of its proper divisors (348524565).

465778155 is a wasteful number, since it uses less digits than its factorization.

465778155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 1176000, while the sum is 48.

The square root of 465778155 is about 21581.8941476414. The cubic root of 465778155 is about 775.1630069885.

The spelling of 465778155 in words is "four hundred sixty-five million, seven hundred seventy-eight thousand, one hundred fifty-five".