65161907460 has 192 divisors, whose sum is σ = 231163027200. Its totient is φ = 15096305664.

The previous prime is 65161907413. The next prime is 65161907491. The reversal of 65161907460 is 6470916156.

65161907460 is a `hidden beast` number, since 6 + 516 + 1 + 9 + 0 + 74 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153670 + ... + 392349.

It is an arithmetic number, because the mean of its divisors is an integer number (1203974100).

Almost surely, 2^65161907460 is an apocalyptic number.

65161907460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65161907460 is an abundant number, since it is smaller than the sum of its proper divisors (166001119740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65161907460 is a wasteful number, since it uses less digits than its factorization.

65161907460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546067 (or 546059 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 65161907460 in words is "sixty-five billion, one hundred sixty-one million, nine hundred seven thousand, four hundred sixty".