15663105401 has 16 divisors (see below), whose sum is σ = 16505908608. Its totient is φ = 14843606400.

The previous prime is 15663105383. The next prime is 15663105433. The reversal of 15663105401 is 10450136651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15663105401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15663105301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949046 + ... + 965408.

It is an arithmetic number, because the mean of its divisors is an integer number (1031619288).

Almost surely, 2^15663105401 is an apocalyptic number.

It is an amenable number.

15663105401 is a deficient number, since it is larger than the sum of its proper divisors (842803207).

15663105401 is a wasteful number, since it uses less digits than its factorization.

15663105401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17072.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 15663105401 in words is "fifteen billion, six hundred sixty-three million, one hundred five thousand, four hundred one".