63526222665 has 48 divisors (see below), whose sum is σ = 113089026960. Its totient is φ = 32968949760.

The previous prime is 63526222651. The next prime is 63526222703. The reversal of 63526222665 is 56622262536.

It is a happy number.

63526222665 is a `hidden beast` number, since 63 + 526 + 2 + 2 + 2 + 6 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5267711241 + 58258511424 = 72579^2 + 241368^2 .

It is not a de Polignac number, because 63526222665 - 2⁴ = 63526222649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 63526222665.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 673449 + ... + 761961.

It is an arithmetic number, because the mean of its divisors is an integer number (2356021395).

Almost surely, 2^63526222665 is an apocalyptic number.

It is an amenable number.

63526222665 is a deficient number, since it is larger than the sum of its proper divisors (49562804295).

63526222665 is a wasteful number, since it uses less digits than its factorization.

63526222665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88954 (or 88951 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 63526222665 in words is "sixty-three billion, five hundred twenty-six million, two hundred twenty-two thousand, six hundred sixty-five".