2662136561656 has 32 divisors (see below), whose sum is σ = 5864146974000. Its totient is φ = 1116980375040.

The previous prime is 2662136561653. The next prime is 2662136561657. The reversal of 2662136561656 is 6561656312662.

It is a junction number, because it is equal to n+sod(n) for n = 2662136561597 and 2662136561606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662136561653) 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, 1163520081 + ... + 1163522368.

Almost surely, 2^{2662136561656} is an apocalyptic number.

2662136561656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2662136561656 is an abundant number, since it is smaller than the sum of its proper divisors (3202010412344).

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

2662136561656 is a wasteful number, since it uses less digits than its factorization.

2662136561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327042479 (or 2327042475 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 55.

The spelling of 2662136561656 in words is "two trillion, six hundred sixty-two billion, one hundred thirty-six million, five hundred sixty-one thousand, six hundred fifty-six".