1016665650000 has 2880 divisors, whose sum is σ = 4984387978752. Its totient is φ = 186624000000.

The previous prime is 1016665649983. The next prime is 1016665650067. The reversal of 1016665650000 is 565666101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 16666649970 + ... + 16666650030.

Almost surely, 2^{1016665650000} is an apocalyptic number.

1016665650000 is a gapful number since it is divisible by the number (10) 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 1016665650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492193989376).

1016665650000 is an abundant number, since it is smaller than the sum of its proper divisors (3967722328752).

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

1016665650000 is a wasteful number, since it uses less digits than its factorization.

1016665650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 1016665650000 in words is "one trillion, sixteen billion, six hundred sixty-five million, six hundred fifty thousand".