1001500100660 has 48 divisors (see below), whose sum is σ = 2217185187840. Its totient is φ = 379428990720.

The previous prime is 1001500100621. The next prime is 1001500100687. The reversal of 1001500100660 is 660010051001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17155145 + ... + 17213424.

It is an arithmetic number, because the mean of its divisors is an integer number (46191358080).

Almost surely, 2^{1001500100660} is an apocalyptic number.

1001500100660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001500100660 is an abundant number, since it is smaller than the sum of its proper divisors (1215685087180).

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

1001500100660 is a wasteful number, since it uses less digits than its factorization.

1001500100660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34368656 (or 34368654 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 1001500100660 its reverse (660010051001), we get a palindrome (1661510151661).

The spelling of 1001500100660 in words is "one trillion, one billion, five hundred million, one hundred thousand, six hundred sixty".