672155532757 has 8 divisors (see below), whose sum is σ = 680760684800. Its totient is φ = 663552802224.

The previous prime is 672155532721. The next prime is 672155532793. The reversal of 672155532757 is 757235551276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (672155532721) and next prime (672155532793).

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 672155532757 - 2²⁷ = 672021315029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 672155532698 and 672155532707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672155532157) 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, 43353 + ... + 1160254.

It is an arithmetic number, because the mean of its divisors is an integer number (85095085600).

Almost surely, 2^672155532757 is an apocalyptic number.

It is an amenable number.

672155532757 is a deficient number, since it is larger than the sum of its proper divisors (8605152043).

672155532757 is a wasteful number, since it uses less digits than its factorization.

672155532757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210755.

The product of its digits is 15435000, while the sum is 55.

The spelling of 672155532757 in words is "six hundred seventy-two billion, one hundred fifty-five million, five hundred thirty-two thousand, seven hundred fifty-seven".