15220443051 has 32 divisors (see below), whose sum is σ = 24612768000. Its totient is φ = 9219234240.

The previous prime is 15220443047. The next prime is 15220443053. The reversal of 15220443051 is 15034402251.

15220443051 is a `hidden beast` number, since 1 + 5 + 220 + 4 + 430 + 5 + 1 = 666.

It is not a de Polignac number, because 15220443051 - 2² = 15220443047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (15220443053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540775 + ... + 568223.

It is an arithmetic number, because the mean of its divisors is an integer number (769149000).

Almost surely, 2^15220443051 is an apocalyptic number.

15220443051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15220443051 is a deficient number, since it is larger than the sum of its proper divisors (9392324949).

15220443051 is a wasteful number, since it uses less digits than its factorization.

15220443051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29336 (or 29330 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 15220443051 in words is "fifteen billion, two hundred twenty million, four hundred forty-three thousand, fifty-one".