15011645140 has 12 divisors (see below), whose sum is σ = 31524454836. Its totient is φ = 6004658048.

The previous prime is 15011645137. The next prime is 15011645147. The reversal of 15011645140 is 4154611051.

It can be written as a sum of positive squares in 2 ways, for example, as 5793340996 + 9218304144 = 76114^2 + 96012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15011645099 and 15011645108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15011645147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375291109 + ... + 375291148.

It is an arithmetic number, because the mean of its divisors is an integer number (2627037903).

Almost surely, 2^15011645140 is an apocalyptic number.

15011645140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15011645140 is an abundant number, since it is smaller than the sum of its proper divisors (16512809696).

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

15011645140 is a wasteful number, since it uses less digits than its factorization.

15011645140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750582266 (or 750582264 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 15011645140 in words is "fifteen billion, eleven million, six hundred forty-five thousand, one hundred forty".