1001650561164 has 48 divisors (see below), whose sum is σ = 2832951085440. Its totient is φ = 303530472720.

The previous prime is 1001650561139. The next prime is 1001650561187. The reversal of 1001650561164 is 4611650561001.

It is a super-2 number, since 2×1001650561164² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421568914 + ... + 421571289.

It is an arithmetic number, because the mean of its divisors is an integer number (59019814280).

Almost surely, 2^{1001650561164} is an apocalyptic number.

It is an amenable number.

1001650561164 is an abundant number, since it is smaller than the sum of its proper divisors (1831300524276).

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

1001650561164 is a wasteful number, since it uses less digits than its factorization.

1001650561164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843140227 (or 843140219 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 1001650561164 in words is "one trillion, one billion, six hundred fifty million, five hundred sixty-one thousand, one hundred sixty-four".