55667957693280 has 96 divisors (see below), whose sum is σ = 177573738585600. Its totient is φ = 14656879990272.

The previous prime is 55667957693273. The next prime is 55667957693323. The reversal of 55667957693280 is 8239675976655.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 55667957693196 and 55667957693205.

It is a congruent 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, 733980510 + ... + 734056349.

It is an arithmetic number, because the mean of its divisors is an integer number (1849726443600).

Almost surely, 2^{55667957693280} is an apocalyptic number.

It is an amenable number.

55667957693280 is an abundant number, since it is smaller than the sum of its proper divisors (121905780892320).

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

55667957693280 is a wasteful number, since it uses less digits than its factorization.

55667957693280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468036956 (or 1468036948 counting only the distinct ones).

The product of its (nonzero) digits is 5143824000, while the sum is 78.

The spelling of 55667957693280 in words is "fifty-five trillion, six hundred sixty-seven billion, nine hundred fifty-seven million, six hundred ninety-three thousand, two hundred eighty".