15263890155 has 16 divisors (see below), whose sum is σ = 27135804960. Its totient is φ = 8140741344.

The previous prime is 15263890139. The next prime is 15263890157. The reversal of 15263890155 is 55109836251.

15263890155 is a `hidden beast` number, since 1 + 5 + 2 + 638 + 9 + 0 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 15263890155 - 2⁴ = 15263890139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 15263890155.

It is not an unprimeable number, because it can be changed into a prime (15263890157) 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, 56532792 + ... + 56533061.

It is an arithmetic number, because the mean of its divisors is an integer number (1695987810).

Almost surely, 2^15263890155 is an apocalyptic number.

15263890155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15263890155 is a deficient number, since it is larger than the sum of its proper divisors (11871914805).

15263890155 is a wasteful number, since it uses less digits than its factorization.

15263890155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113065867 (or 113065861 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The spelling of 15263890155 in words is "fifteen billion, two hundred sixty-three million, eight hundred ninety thousand, one hundred fifty-five".