15206994432 has 480 divisors, whose sum is σ = 54813158400. Its totient is φ = 4111699968.

The previous prime is 15206994421. The next prime is 15206994461. The reversal of 15206994432 is 23449960251.

15206994432 is a `hidden beast` number, since 1 + 5 + 206 + 9 + 9 + 4 + 432 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16546869 + ... + 16547787.

It is an arithmetic number, because the mean of its divisors is an integer number (114194080).

Almost surely, 2^15206994432 is an apocalyptic number.

15206994432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15206994432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27406579200).

15206994432 is an abundant number, since it is smaller than the sum of its proper divisors (39606163968).

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

15206994432 is an frugal number, since it uses more digits than its factorization.

15206994432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

It can be divided in two parts, 1520699 and 4432, that added together give a triangular number (1525131 = T₁₇₄₆).

The spelling of 15206994432 in words is "fifteen billion, two hundred six million, nine hundred ninety-four thousand, four hundred thirty-two".