76505545603666 has 16 divisors (see below), whose sum is σ = 116704545019200. Its totient is φ = 37604043601488.

The previous prime is 76505545603661. The next prime is 76505545603673. The reversal of 76505545603666 is 66630654550567.

It is a super-2 number, since 2×76505545603666² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76505545603598 and 76505545603607.

It is not an unprimeable number, because it can be changed into a prime (76505545603661) 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, 8752195 + ... + 15152953.

It is an arithmetic number, because the mean of its divisors is an integer number (7294034063700).

Almost surely, 2^{76505545603666} is an apocalyptic number.

76505545603666 is a deficient number, since it is larger than the sum of its proper divisors (40198999415534).

76505545603666 is a wasteful number, since it uses less digits than its factorization.

76505545603666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502113.

The product of its (nonzero) digits is 408240000, while the sum is 64.

The spelling of 76505545603666 in words is "seventy-six trillion, five hundred five billion, five hundred forty-five million, six hundred three thousand, six hundred sixty-six".