65456951420 has 24 divisors (see below), whose sum is σ = 157096683744. Its totient is φ = 22442383296.

The previous prime is 65456951393. The next prime is 65456951423. The reversal of 65456951420 is 2415965456.

It is a super-2 number, since 2×65456951420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65456951423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233774687 + ... + 233774966.

It is an arithmetic number, because the mean of its divisors is an integer number (6545695156).

Almost surely, 2^65456951420 is an apocalyptic number.

It is an amenable number.

65456951420 is an abundant number, since it is smaller than the sum of its proper divisors (91639732324).

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

65456951420 is a wasteful number, since it uses less digits than its factorization.

65456951420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467549669 (or 467549667 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 65456951420 in words is "sixty-five billion, four hundred fifty-six million, nine hundred fifty-one thousand, four hundred twenty".