670900631040 has 400 divisors, whose sum is σ = 2480492488320. Its totient is φ = 173133987840.

The previous prime is 670900631033. The next prime is 670900631041. The reversal of 670900631040 is 40136009076.

It is a super-2 number, since 2×670900631040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 670900630986 and 670900631004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670900631041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6375976 + ... + 6480344.

Almost surely, 2^670900631040 is an apocalyptic number.

670900631040 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 670900631040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240246244160).

670900631040 is an abundant number, since it is smaller than the sum of its proper divisors (1809591857280).

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

670900631040 is a wasteful number, since it uses less digits than its factorization.

670900631040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104435 (or 104410 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 670900631040 in words is "six hundred seventy billion, nine hundred million, six hundred thirty-one thousand, forty".