15511661005150 has 12 divisors (see below), whose sum is σ = 28851689469672. Its totient is φ = 6204664402040.

The previous prime is 15511661005117. The next prime is 15511661005153. The reversal of 15511661005150 is 5150016611551.

It is a super-2 number, since 2×15511661005150² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15511661005153) 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 5 ways as a sum of consecutive naturals, for example, 155116610002 + ... + 155116610101.

It is an arithmetic number, because the mean of its divisors is an integer number (2404307455806).

Almost surely, 2^{15511661005150} is an apocalyptic number.

15511661005150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15511661005150 is a deficient number, since it is larger than the sum of its proper divisors (13340028464522).

15511661005150 is a wasteful number, since it uses less digits than its factorization.

15511661005150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310233220115 (or 310233220110 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 15511661005150 in words is "fifteen trillion, five hundred eleven billion, six hundred sixty-one million, five thousand, one hundred fifty".