15651147264 has 80 divisors (see below), whose sum is σ = 42065088912. Its totient is φ = 5170823168.

The previous prime is 15651147233. The next prime is 15651147269. The reversal of 15651147264 is 46274115651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15651147269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 128482 + ... + 218654.

Almost surely, 2^15651147264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15651147264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21032544456).

15651147264 is an abundant number, since it is smaller than the sum of its proper divisors (26413941648).

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

15651147264 is an equidigital number, since it uses as much as digits as its factorization.

15651147264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90307 (or 90291 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The spelling of 15651147264 in words is "fifteen billion, six hundred fifty-one million, one hundred forty-seven thousand, two hundred sixty-four".