63640466106 has 16 divisors (see below), whose sum is σ = 145463922624. Its totient is φ = 18182990304.

The previous prime is 63640466003. The next prime is 63640466119. The reversal of 63640466106 is 60166404636.

63640466106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1515249193 = 63640466106 / (6 + 3 + 6 + 4 + 0 + 4 + 6 + 6 + 1 + 0 + 6).

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, 757624555 + ... + 757624638.

It is an arithmetic number, because the mean of its divisors is an integer number (9091495164).

Almost surely, 2^63640466106 is an apocalyptic number.

63640466106 is an abundant number, since it is smaller than the sum of its proper divisors (81823456518).

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

63640466106 is a wasteful number, since it uses less digits than its factorization.

63640466106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515249205.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 63640466106 in words is "sixty-three billion, six hundred forty million, four hundred sixty-six thousand, one hundred six".