670545993600 has 1920 divisors, whose sum is σ = 3041226777600. Its totient is φ = 142073118720.

The previous prime is 670545993553. The next prime is 670545993631. The reversal of 670545993600 is 6399545076.

670545993600 is a `hidden beast` number, since 6 + 7 + 0 + 545 + 9 + 93 + 6 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a super-2 number, since 2×670545993600² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1827100617 + ... + 1827100983.

It is an arithmetic number, because the mean of its divisors is an integer number (1583972280).

Almost surely, 2^670545993600 is an apocalyptic number.

670545993600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670545993600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520613388800).

670545993600 is an abundant number, since it is smaller than the sum of its proper divisors (2370680784000).

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

670545993600 is a wasteful number, since it uses less digits than its factorization.

670545993600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The spelling of 670545993600 in words is "six hundred seventy billion, five hundred forty-five million, nine hundred ninety-three thousand, six hundred".