15220671072 has 24 divisors (see below), whose sum is σ = 39954261816. Its totient is φ = 5073556992.

The previous prime is 15220671049. The next prime is 15220671097. The reversal of 15220671072 is 27017602251.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79274233 + ... + 79274424.

It is an arithmetic number, because the mean of its divisors is an integer number (1664760909).

Almost surely, 2^15220671072 is an apocalyptic number.

15220671072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15220671072 is an abundant number, since it is smaller than the sum of its proper divisors (24733590744).

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

15220671072 is a wasteful number, since it uses less digits than its factorization.

15220671072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158548670 (or 158548662 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 15220671072 in words is "fifteen billion, two hundred twenty million, six hundred seventy-one thousand, seventy-two".