15155769990 has 16 divisors (see below), whose sum is σ = 36373848048. Its totient is φ = 4041538656.

The previous prime is 15155769929. The next prime is 15155770001. The reversal of 15155769990 is 9996755151.

15155769990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15155769990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252596137 + ... + 252596196.

It is an arithmetic number, because the mean of its divisors is an integer number (2273365503).

Almost surely, 2^15155769990 is an apocalyptic number.

15155769990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15155769990 is an abundant number, since it is smaller than the sum of its proper divisors (21218078058).

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

15155769990 is a wasteful number, since it uses less digits than its factorization.

15155769990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505192343.

The product of its (nonzero) digits is 3827250, while the sum is 57.

The spelling of 15155769990 in words is "fifteen billion, one hundred fifty-five million, seven hundred sixty-nine thousand, nine hundred ninety".