320674134690 has 192 divisors, whose sum is σ = 1029950917632. Its totient is φ = 67408588800.

The previous prime is 320674134679. The next prime is 320674134743. The reversal of 320674134690 is 96431476023.

It is a super-2 number, since 2×320674134690² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2147250 + ... + 2291730.

It is an arithmetic number, because the mean of its divisors is an integer number (5364327696).

Almost surely, 2^320674134690 is an apocalyptic number.

320674134690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320674134690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514975458816).

320674134690 is an abundant number, since it is smaller than the sum of its proper divisors (709276782942).

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

320674134690 is a wasteful number, since it uses less digits than its factorization.

320674134690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144785 (or 144782 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 320674134690 in words is "three hundred twenty billion, six hundred seventy-four million, one hundred thirty-four thousand, six hundred ninety".