1642336146625 has 192 divisors, whose sum is σ = 2340870554880. Its totient is φ = 1145426688000.

The previous prime is 1642336146623. The next prime is 1642336146629. The reversal of 1642336146625 is 5266416332461.

It is not a de Polignac number, because 1642336146625 - 2¹ = 1642336146623 is a prime.

It is a super-2 number, since 2×1642336146625² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1642336146623) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5180870967 + ... + 5180871283.

It is an arithmetic number, because the mean of its divisors is an integer number (12192034140).

Almost surely, 2^{1642336146625} is an apocalyptic number.

It is an amenable number.

1642336146625 is a deficient number, since it is larger than the sum of its proper divisors (698534408255).

1642336146625 is a wasteful number, since it uses less digits than its factorization.

1642336146625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 472 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 49.

The spelling of 1642336146625 in words is "one trillion, six hundred forty-two billion, three hundred thirty-six million, one hundred forty-six thousand, six hundred twenty-five".