40553851257657 has 24 divisors (see below), whose sum is σ = 61295711579648. Its totient is φ = 25805367115200.

The previous prime is 40553851257649. The next prime is 40553851257701. The reversal of 40553851257657 is 75675215835504.

40553851257657 is a `hidden beast` number, since 4 + 0 + 5 + 5 + 3 + 8 + 5 + 1 + 2 + 576 + 57 = 666.

It is not a de Polignac number, because 40553851257657 - 2³ = 40553851257649 is a prime.

It is a super-2 number, since 2×40553851257657² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40553851257594 and 40553851257603.

It is not an unprimeable number, because it can be changed into a prime (40553851257607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 995557069 + ... + 995597802.

Almost surely, 2^{40553851257657} is an apocalyptic number.

It is an amenable number.

40553851257657 is a deficient number, since it is larger than the sum of its proper divisors (20741860321991).

40553851257657 is a wasteful number, since it uses less digits than its factorization.

40553851257657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991154981 (or 1991154978 counting only the distinct ones).

The product of its (nonzero) digits is 176400000, while the sum is 63.

The spelling of 40553851257657 in words is "forty trillion, five hundred fifty-three billion, eight hundred fifty-one million, two hundred fifty-seven thousand, six hundred fifty-seven".