461251161265 has 16 divisors (see below), whose sum is σ = 565798367232. Its totient is φ = 360817401024.

The previous prime is 461251161211. The next prime is 461251161317. The reversal of 461251161265 is 562161152164.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461251161265 is a prime.

It is a super-2 number, since 2×461251161265² (a number of 24 digits) contains 22 as substring.

It is a Duffinian 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, 647394 + ... + 1158283.

It is an arithmetic number, because the mean of its divisors is an integer number (35362397952).

Almost surely, 2^461251161265 is an apocalyptic number.

It is an amenable number.

461251161265 is a deficient number, since it is larger than the sum of its proper divisors (104547205967).

461251161265 is a wasteful number, since it uses less digits than its factorization.

461251161265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806816.

The product of its digits is 86400, while the sum is 40.

The spelling of 461251161265 in words is "four hundred sixty-one billion, two hundred fifty-one million, one hundred sixty-one thousand, two hundred sixty-five".