172059656890 has 16 divisors (see below), whose sum is σ = 337862599200. Its totient is φ = 62567147920.

The previous prime is 172059656887. The next prime is 172059656897. The reversal of 172059656890 is 98656950271.

It is a super-3 number, since 3×172059656890³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172059656897) 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, 782089240 + ... + 782089459.

It is an arithmetic number, because the mean of its divisors is an integer number (21116412450).

Almost surely, 2^172059656890 is an apocalyptic number.

172059656890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172059656890 is a deficient number, since it is larger than the sum of its proper divisors (165802942310).

172059656890 is a wasteful number, since it uses less digits than its factorization.

172059656890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564178717.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 172059656890 in words is "one hundred seventy-two billion, fifty-nine million, six hundred fifty-six thousand, eight hundred ninety".