173212255480 has 32 divisors (see below), whose sum is σ = 425157355440. Its totient is φ = 62986274560.

The previous prime is 173212255471. The next prime is 173212255487. The reversal of 173212255480 is 84552212371.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173212255487) 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, 196831669 + ... + 196832548.

Almost surely, 2^173212255480 is an apocalyptic number.

173212255480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173212255480 is an abundant number, since it is smaller than the sum of its proper divisors (251945099960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173212255480 is a wasteful number, since it uses less digits than its factorization.

173212255480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393664239 (or 393664235 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 173212255480 in words is "one hundred seventy-three billion, two hundred twelve million, two hundred fifty-five thousand, four hundred eighty".