56071666672494 has 32 divisors (see below), whose sum is σ = 127657233218304. Its totient is φ = 16252657006080.

The previous prime is 56071666672453. The next prime is 56071666672499. The reversal of 56071666672494 is 49427666617065.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56071666672499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18468926899 + ... + 18468929934.

It is an arithmetic number, because the mean of its divisors is an integer number (3989288538072).

Almost surely, 2^{56071666672494} is an apocalyptic number.

56071666672494 is an abundant number, since it is smaller than the sum of its proper divisors (71585566545810).

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

56071666672494 is a wasteful number, since it uses less digits than its factorization.

56071666672494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36937856872.

The product of its (nonzero) digits is 548674560, while the sum is 69.

The spelling of 56071666672494 in words is "fifty-six trillion, seventy-one billion, six hundred sixty-six million, six hundred seventy-two thousand, four hundred ninety-four".