1660015510002 has 80 divisors (see below), whose sum is σ = 3851601336000. Its totient is φ = 533747944800.

The previous prime is 1660015509967. The next prime is 1660015510057. The reversal of 1660015510002 is 2000155100661.

It is a happy number.

1660015510002 is a `hidden beast` number, since 1 + 6 + 600 + 1 + 5 + 51 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4769499 + ... + 5105697.

It is an arithmetic number, because the mean of its divisors is an integer number (48145016700).

Almost surely, 2^{1660015510002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660015510002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1925800668000).

1660015510002 is an abundant number, since it is smaller than the sum of its proper divisors (2191585825998).

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

1660015510002 is a wasteful number, since it uses less digits than its factorization.

1660015510002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337293 (or 337284 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 1660015510002 in words is "one trillion, six hundred sixty billion, fifteen million, five hundred ten thousand, two".