55204155760664 has 128 divisors (see below), whose sum is σ = 105907358269440. Its totient is φ = 26971619697792.

The previous prime is 55204155760661. The next prime is 55204155760667. The reversal of 55204155760664 is 46606755140255.

It is an interprime number because it is at equal distance from previous prime (55204155760661) and next prime (55204155760667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55204155760661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35229198809 + ... + 35229200375.

It is an arithmetic number, because the mean of its divisors is an integer number (827401236480).

Almost surely, 2^{55204155760664} is an apocalyptic number.

It is an amenable number.

55204155760664 is a deficient number, since it is larger than the sum of its proper divisors (50703202508776).

55204155760664 is a wasteful number, since it uses less digits than its factorization.

55204155760664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 56.

The spelling of 55204155760664 in words is "fifty-five trillion, two hundred four billion, one hundred fifty-five million, seven hundred sixty thousand, six hundred sixty-four".