1642065112611 has 32 divisors (see below), whose sum is σ = 3032962982400. Its totient is φ = 853020836640.

The previous prime is 1642065112553. The next prime is 1642065112619. The reversal of 1642065112611 is 1162115602461.

1642065112611 is a `hidden beast` number, since 1 + 6 + 4 + 20 + 6 + 5 + 1 + 12 + 611 = 666.

It is not a de Polignac number, because 1642065112611 - 2⁷ = 1642065112483 is a prime.

It is a super-2 number, since 2×1642065112611² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1642065112619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394914976 + ... + 394919133.

It is an arithmetic number, because the mean of its divisors is an integer number (94780093200).

Almost surely, 2^{1642065112611} is an apocalyptic number.

1642065112611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1642065112611 is a deficient number, since it is larger than the sum of its proper divisors (1390897869789).

1642065112611 is a wasteful number, since it uses less digits than its factorization.

1642065112611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789834136 (or 789834130 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 1642065112611 in words is "one trillion, six hundred forty-two billion, sixty-five million, one hundred twelve thousand, six hundred eleven".