76666020253 has 16 divisors (see below), whose sum is σ = 80668679616. Its totient is φ = 72791832960.

The previous prime is 76666020251. The next prime is 76666020293. The reversal of 76666020253 is 35202066667.

It is not a de Polignac number, because 76666020253 - 2¹ = 76666020251 is a prime.

It is a super-2 number, since 2×76666020253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76666020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59875 + ... + 396127.

It is an arithmetic number, because the mean of its divisors is an integer number (5041792476).

Almost surely, 2^76666020253 is an apocalyptic number.

It is an amenable number.

76666020253 is a deficient number, since it is larger than the sum of its proper divisors (4002659363).

76666020253 is a wasteful number, since it uses less digits than its factorization.

76666020253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336444.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 76666020253 in words is "seventy-six billion, six hundred sixty-six million, twenty thousand, two hundred fifty-three".