77165853552001 has 4 divisors (see below), whose sum is σ = 77172573571632. Its totient is φ = 77159133532372.

The previous prime is 77165853551999. The next prime is 77165853552019. The reversal of 77165853552001 is 10025535856177.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77165853552001 - 2¹ = 77165853551999 is a prime.

It is a super-2 number, since 2×77165853552001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77165853559001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3359992591 + ... + 3360015556.

It is an arithmetic number, because the mean of its divisors is an integer number (19293143392908).

Almost surely, 2^{77165853552001} is an apocalyptic number.

It is an amenable number.

77165853552001 is a deficient number, since it is larger than the sum of its proper divisors (6720019631).

77165853552001 is a wasteful number, since it uses less digits than its factorization.

77165853552001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720019630.

The product of its (nonzero) digits is 8820000, while the sum is 55.

The spelling of 77165853552001 in words is "seventy-seven trillion, one hundred sixty-five billion, eight hundred fifty-three million, five hundred fifty-two thousand, one".