122577001669 has 8 divisors (see below), whose sum is σ = 130230925560. Its totient is φ = 115151553216.

The previous prime is 122577001663. The next prime is 122577001681. The reversal of 122577001669 is 966100775221.

It can be written as a sum of positive squares in 4 ways, for example, as 76459439169 + 46117562500 = 276513^2 + 214750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122577001669 - 2³ = 122577001661 is a prime.

It is a super-2 number, since 2×122577001669² (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 (122577001661) 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, 57117754 + ... + 57119899.

It is an arithmetic number, because the mean of its divisors is an integer number (16278865695).

Almost surely, 2^122577001669 is an apocalyptic number.

It is an amenable number.

122577001669 is a deficient number, since it is larger than the sum of its proper divisors (7653923891).

122577001669 is a wasteful number, since it uses less digits than its factorization.

122577001669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114237719.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 122577001669 in words is "one hundred twenty-two billion, five hundred seventy-seven million, one thousand, six hundred sixty-nine".