672215012071 has 4 divisors (see below), whose sum is σ = 672219317232. Its totient is φ = 672210706912.

The previous prime is 672215012023. The next prime is 672215012143. The reversal of 672215012071 is 170210512276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672215012071 - 2³⁷ = 534776058599 is a prime.

It is a super-2 number, since 2×672215012071² (a number of 24 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 (672215012171) 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, 1909195 + ... + 2233708.

It is an arithmetic number, because the mean of its divisors is an integer number (168054829308).

Almost surely, 2^672215012071 is an apocalyptic number.

672215012071 is a deficient number, since it is larger than the sum of its proper divisors (4305161).

672215012071 is a wasteful number, since it uses less digits than its factorization.

672215012071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305160.

The product of its (nonzero) digits is 11760, while the sum is 34.

The spelling of 672215012071 in words is "six hundred seventy-two billion, two hundred fifteen million, twelve thousand, seventy-one".