15855460801 has 4 divisors (see below), whose sum is σ = 15856957872. Its totient is φ = 15853963732.

The previous prime is 15855460799. The next prime is 15855460813. The reversal of 15855460801 is 10806455851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15855460801 - 2¹ = 15855460799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15855460891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732535 + ... + 753868.

It is an arithmetic number, because the mean of its divisors is an integer number (3964239468).

Almost surely, 2^15855460801 is an apocalyptic number.

It is an amenable number.

15855460801 is a deficient number, since it is larger than the sum of its proper divisors (1497071).

15855460801 is a wasteful number, since it uses less digits than its factorization.

15855460801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497070.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 15855460801 in words is "fifteen billion, eight hundred fifty-five million, four hundred sixty thousand, eight hundred one".