672105551535 has 48 divisors (see below), whose sum is σ = 1313352294240. Its totient is φ = 325869350400.

The previous prime is 672105551531. The next prime is 672105551597. The reversal of 672105551535 is 535155501276.

672105551535 is a `hidden beast` number, since 6 + 7 + 2 + 10 + 55 + 51 + 535 = 666.

It is not a de Polignac number, because 672105551535 - 2² = 672105551531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672105551531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20556226 + ... + 20588895.

It is an arithmetic number, because the mean of its divisors is an integer number (27361506130).

Almost surely, 2^672105551535 is an apocalyptic number.

672105551535 is a deficient number, since it is larger than the sum of its proper divisors (641246742705).

672105551535 is a wasteful number, since it uses less digits than its factorization.

672105551535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41145157 (or 41145140 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 45.

The spelling of 672105551535 in words is "six hundred seventy-two billion, one hundred five million, five hundred fifty-one thousand, five hundred thirty-five".