55596947966 has 16 divisors (see below), whose sum is σ = 95312633856. Its totient is φ = 23826368376.

The previous prime is 55596947963. The next prime is 55596947993. The reversal of 55596947966 is 66974969555.

It is a super-2 number, since 2×55596947966² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55596947966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55596947963) 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, 428375 + ... + 542861.

It is an arithmetic number, because the mean of its divisors is an integer number (5957039616).

Almost surely, 2^55596947966 is an apocalyptic number.

55596947966 is a deficient number, since it is larger than the sum of its proper divisors (39715685890).

55596947966 is a wasteful number, since it uses less digits than its factorization.

55596947966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149183.

The product of its digits is 551124000, while the sum is 71.

The spelling of 55596947966 in words is "fifty-five billion, five hundred ninety-six million, nine hundred forty-seven thousand, nine hundred sixty-six".