672074655321 has 16 divisors (see below), whose sum is σ = 946517749760. Its totient is φ = 423512908560.

The previous prime is 672074655311. The next prime is 672074655331. The reversal of 672074655321 is 123556470276.

It is an interprime number because it is at equal distance from previous prime (672074655311) and next prime (672074655331).

It is not a de Polignac number, because 672074655321 - 2⁹ = 672074654809 is a prime.

It is a super-2 number, since 2×672074655321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672074655311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84026341 + ... + 84034338.

It is an arithmetic number, because the mean of its divisors is an integer number (59157359360).

Almost surely, 2^672074655321 is an apocalyptic number.

It is an amenable number.

672074655321 is a deficient number, since it is larger than the sum of its proper divisors (274443094439).

672074655321 is a wasteful number, since it uses less digits than its factorization.

672074655321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168060756.

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 672074655321 in words is "six hundred seventy-two billion, seventy-four million, six hundred fifty-five thousand, three hundred twenty-one".