77137401665223 has 12 divisors (see below), whose sum is σ = 116265069176880. Its totient is φ = 49189067728416.

The previous prime is 77137401665143. The next prime is 77137401665243. The reversal of 77137401665223 is 32256610473177.

77137401665223 is a `hidden beast` number, since 7 + 7 + 1 + 3 + 7 + 401 + 6 + 6 + 5 + 223 = 666.

It is not a de Polignac number, because 77137401665223 - 2²⁴ = 77137384888007 is a prime.

It is a super-3 number, since 3×77137401665223³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77137401665223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77137401665243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186322226038 + ... + 186322226451.

It is an arithmetic number, because the mean of its divisors is an integer number (9688755764740).

Almost surely, 2^{77137401665223} is an apocalyptic number.

77137401665223 is a deficient number, since it is larger than the sum of its proper divisors (39127667511657).

77137401665223 is a wasteful number, since it uses less digits than its factorization.

77137401665223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372644452518 (or 372644452515 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 77137401665223 in words is "seventy-seven trillion, one hundred thirty-seven billion, four hundred one million, six hundred sixty-five thousand, two hundred twenty-three".