2150516661000 has 128 divisors (see below), whose sum is σ = 6723281784960. Its totient is φ = 572302752000.

The previous prime is 2150516660933. The next prime is 2150516661031. The reversal of 2150516661000 is 1666150512.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743022 + ... + 2202978.

It is an arithmetic number, because the mean of its divisors is an integer number (52525638945).

Almost surely, 2^{2150516661000} is an apocalyptic number.

2150516661000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150516661000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3361640892480).

2150516661000 is an abundant number, since it is smaller than the sum of its proper divisors (4572765123960).

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

2150516661000 is a wasteful number, since it uses less digits than its factorization.

2150516661000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460472 (or 1460458 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 2150516661000 in words is "two trillion, one hundred fifty billion, five hundred sixteen million, six hundred sixty-one thousand".