26157446261556 has 24 divisors (see below), whose sum is σ = 61300565481120. Its totient is φ = 8681073867552.

The previous prime is 26157446261533. The next prime is 26157446261579. The reversal of 26157446261556 is 65516264475162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26157446261533) and next prime (26157446261579).

It is a super-2 number, since 2×26157446261556² (a number of 28 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 26157446261556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4759357926 + ... + 4759363421.

It is an arithmetic number, because the mean of its divisors is an integer number (2554190228380).

Almost surely, 2^{26157446261556} is an apocalyptic number.

It is an amenable number.

26157446261556 is an abundant number, since it is smaller than the sum of its proper divisors (35143119219564).

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

26157446261556 is a wasteful number, since it uses less digits than its factorization.

26157446261556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518721583 (or 9518721581 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 60.

The spelling of 26157446261556 in words is "twenty-six trillion, one hundred fifty-seven billion, four hundred forty-six million, two hundred sixty-one thousand, five hundred fifty-six".