15883812066 has 32 divisors (see below), whose sum is σ = 32949286848. Its totient is φ = 5100494400.

The previous prime is 15883812059. The next prime is 15883812067. The reversal of 15883812066 is 66021838851.

It is not an unprimeable number, because it can be changed into a prime (15883812067) 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, 331780 + ... + 376623.

It is an arithmetic number, because the mean of its divisors is an integer number (1029665214).

Almost surely, 2^15883812066 is an apocalyptic number.

15883812066 is an abundant number, since it is smaller than the sum of its proper divisors (17065474782).

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

15883812066 is a wasteful number, since it uses less digits than its factorization.

15883812066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708546.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 15883812066 in words is "fifteen billion, eight hundred eighty-three million, eight hundred twelve thousand, sixty-six".