15655561060550 has 24 divisors (see below), whose sum is σ = 30385401991056. Its totient is φ = 5989953796640.

The previous prime is 15655561060547. The next prime is 15655561060553. The reversal of 15655561060550 is 5506016555651.

It is an interprime number because it is at equal distance from previous prime (15655561060547) and next prime (15655561060553).

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15655561060553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6806764529 + ... + 6806766828.

It is an arithmetic number, because the mean of its divisors is an integer number (1266058416294).

Almost surely, 2^{15655561060550} is an apocalyptic number.

15655561060550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15655561060550 is a deficient number, since it is larger than the sum of its proper divisors (14729840930506).

15655561060550 is a wasteful number, since it uses less digits than its factorization.

15655561060550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13613531392 (or 13613531387 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 15655561060550 in words is "fifteen trillion, six hundred fifty-five billion, five hundred sixty-one million, sixty thousand, five hundred fifty".