6454166572272 has 80 divisors (see below), whose sum is σ = 17572500288000. Its totient is φ = 2035638277632.

The previous prime is 6454166572223. The next prime is 6454166572313. The reversal of 6454166572272 is 2722756614546.

It is a happy number.

It is a super-2 number, since 2×6454166572272² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636072 + ... + 5111687.

It is an arithmetic number, because the mean of its divisors is an integer number (219656253600).

Almost surely, 2^{6454166572272} is an apocalyptic number.

It is an amenable number.

6454166572272 is an abundant number, since it is smaller than the sum of its proper divisors (11118333715728).

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

6454166572272 is a wasteful number, since it uses less digits than its factorization.

6454166572272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748598 (or 8748592 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 57.

The spelling of 6454166572272 in words is "six trillion, four hundred fifty-four billion, one hundred sixty-six million, five hundred seventy-two thousand, two hundred seventy-two".