26657304945040 has 160 divisors (see below), whose sum is σ = 80631198130176. Its totient is φ = 7947519444480.

The previous prime is 26657304944989. The next prime is 26657304945059. The reversal of 26657304945040 is 4054940375662.

It is a happy number.

It is a super-2 number, since 2×26657304945040² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93934072 + ... + 94217431.

Almost surely, 2^{26657304945040} is an apocalyptic number.

26657304945040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26657304945040 is an abundant number, since it is smaller than the sum of its proper divisors (53973893185136).

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

26657304945040 is a wasteful number, since it uses less digits than its factorization.

26657304945040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188151557 (or 188151551 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 26657304945040 in words is "twenty-six trillion, six hundred fifty-seven billion, three hundred four million, nine hundred forty-five thousand, forty".