63040205657 has 8 divisors (see below), whose sum is σ = 74061220800. Its totient is φ = 52900871760.

The previous prime is 63040205629. The next prime is 63040205687. The reversal of 63040205657 is 75650204036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-63040205657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63040205657.

It is not an unprimeable number, because it can be changed into a prime (63040205687) 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, 220420157 + ... + 220420442.

It is an arithmetic number, because the mean of its divisors is an integer number (9257652600).

Almost surely, 2^63040205657 is an apocalyptic number.

It is an amenable number.

63040205657 is a deficient number, since it is larger than the sum of its proper divisors (11021015143).

63040205657 is a wasteful number, since it uses less digits than its factorization.

63040205657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440840623.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 63040205657 in words is "sixty-three billion, forty million, two hundred five thousand, six hundred fifty-seven".