15648498650 has 12 divisors (see below), whose sum is σ = 29106207582. Its totient is φ = 6259399440.

The previous prime is 15648498641. The next prime is 15648498709. The reversal of 15648498650 is 5689484651.

It can be written as a sum of positive squares in 3 ways, for example, as 11293950529 + 4354548121 = 106273^2 + 65989^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156484937 + ... + 156485036.

Almost surely, 2^15648498650 is an apocalyptic number.

15648498650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15648498650 is a deficient number, since it is larger than the sum of its proper divisors (13457708932).

15648498650 is a wasteful number, since it uses less digits than its factorization.

15648498650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312969985 (or 312969980 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 15648498650 in words is "fifteen billion, six hundred forty-eight million, four hundred ninety-eight thousand, six hundred fifty".