15990040094628 has 96 divisors (see below), whose sum is σ = 40575921684480. Its totient is φ = 4882351680000.

The previous prime is 15990040094621. The next prime is 15990040094641. The reversal of 15990040094628 is 82649004009951.

It is a super-2 number, since 2×15990040094628² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (15990040094621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7152508 + ... + 9118028.

It is an arithmetic number, because the mean of its divisors is an integer number (422665850880).

Almost surely, 2^{15990040094628} 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 15990040094628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20287960842240).

15990040094628 is an abundant number, since it is smaller than the sum of its proper divisors (24585881589852).

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

15990040094628 is a wasteful number, since it uses less digits than its factorization.

15990040094628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966729 (or 1966727 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 15990040094628 in words is "fifteen trillion, nine hundred ninety billion, forty million, ninety-four thousand, six hundred twenty-eight".