1001661650610 has 32 divisors (see below), whose sum is σ = 2404015492032. Its totient is φ = 267106714560.

The previous prime is 1001661650609. The next prime is 1001661650629. The reversal of 1001661650610 is 160561661001.

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, 3924700 + ... + 4172120.

It is an arithmetic number, because the mean of its divisors is an integer number (75125484126).

Almost surely, 2^{1001661650610} is an apocalyptic number.

1001661650610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001661650610 is an abundant number, since it is smaller than the sum of its proper divisors (1402353841422).

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

1001661650610 is a wasteful number, since it uses less digits than its factorization.

1001661650610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382378.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 1001661650610 in words is "one trillion, one billion, six hundred sixty-one million, six hundred fifty thousand, six hundred ten".