1645566360162 has 128 divisors (see below), whose sum is σ = 3765344486400. Its totient is φ = 476172748800.

The previous prime is 1645566360149. The next prime is 1645566360169. The reversal of 1645566360162 is 2610636655461.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1645566360169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38992789 + ... + 39034967.

It is an arithmetic number, because the mean of its divisors is an integer number (29416753800).

Almost surely, 2^{1645566360162} is an apocalyptic number.

1645566360162 is an abundant number, since it is smaller than the sum of its proper divisors (2119778126238).

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

1645566360162 is a wasteful number, since it uses less digits than its factorization.

1645566360162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42752.

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 1645566360162 in words is "one trillion, six hundred forty-five billion, five hundred sixty-six million, three hundred sixty thousand, one hundred sixty-two".