7642662006663 has 48 divisors (see below), whose sum is σ = 11456698046976. Its totient is φ = 4906201259520.

The previous prime is 7642662006659. The next prime is 7642662006671. The reversal of 7642662006663 is 3666002662467.

It is not a de Polignac number, because 7642662006663 - 2² = 7642662006659 is a prime.

It is a super-2 number, since 2×7642662006663² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642662056663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22818295 + ... + 23150807.

It is an arithmetic number, because the mean of its divisors is an integer number (238681209312).

Almost surely, 2^{7642662006663} is an apocalyptic number.

7642662006663 is a deficient number, since it is larger than the sum of its proper divisors (3814036040313).

7642662006663 is a wasteful number, since it uses less digits than its factorization.

7642662006663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333444 (or 333441 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 54.

The spelling of 7642662006663 in words is "seven trillion, six hundred forty-two billion, six hundred sixty-two million, six thousand, six hundred sixty-three".