20001615010 has 16 divisors (see below), whose sum is σ = 38772361656. Its totient is φ = 7385211648.

The previous prime is 20001614987. The next prime is 20001615041. The reversal of 20001615010 is 1051610002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7980027561 + 12021587449 = 89331^2 + 109643^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76929159 + ... + 76929418.

Almost surely, 2^20001615010 is an apocalyptic number.

20001615010 is a deficient number, since it is larger than the sum of its proper divisors (18770746646).

20001615010 is a wasteful number, since it uses less digits than its factorization.

20001615010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153858597.

The product of its (nonzero) digits is 60, while the sum is 16.

The spelling of 20001615010 in words is "twenty billion, one million, six hundred fifteen thousand, ten".