7662061566 has 16 divisors (see below), whose sum is σ = 17026803600. Its totient is φ = 2554020504.

The previous prime is 7662061523. The next prime is 7662061567. The reversal of 7662061566 is 6651602667.

7662061566 is a `hidden beast` number, since 7 + 6 + 6 + 20 + 61 + 566 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7662061567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70944961 + ... + 70945068.

It is an arithmetic number, because the mean of its divisors is an integer number (1064175225).

Almost surely, 2^7662061566 is an apocalyptic number.

7662061566 is an abundant number, since it is smaller than the sum of its proper divisors (9364742034).

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

7662061566 is a wasteful number, since it uses less digits than its factorization.

7662061566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141890040 (or 141890034 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 7662061566 is about 87533.2026490520. The cubic root of 7662061566 is about 1971.4323514240.

The spelling of 7662061566 in words is "seven billion, six hundred sixty-two million, sixty-one thousand, five hundred sixty-six".