63440661001 has 8 divisors (see below), whose sum is σ = 64321199264. Its totient is φ = 62564745600.

The previous prime is 63440660999. The next prime is 63440661041. The reversal of 63440661001 is 10016604436.

63440661001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 63440661001 - 2¹ = 63440660999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63440661041) 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, 1128075 + ... + 1182976.

It is an arithmetic number, because the mean of its divisors is an integer number (8040149908).

Almost surely, 2^63440661001 is an apocalyptic number.

It is an amenable number.

63440661001 is a deficient number, since it is larger than the sum of its proper divisors (880538263).

63440661001 is a wasteful number, since it uses less digits than its factorization.

63440661001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311431.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 63440661001 in words is "sixty-three billion, four hundred forty million, six hundred sixty-one thousand, one".