606979376640 has 1920 divisors, whose sum is σ = 2774594414592. Its totient is φ = 119120855040.

The previous prime is 606979376567. The next prime is 606979376687. The reversal of 606979376640 is 46673979606.

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

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1977131367 + ... + 1977131673.

Almost surely, 2^606979376640 is an apocalyptic number.

606979376640 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 606979376640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387297207296).

606979376640 is an abundant number, since it is smaller than the sum of its proper divisors (2167615037952).

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

606979376640 is a wasteful number, since it uses less digits than its factorization.

606979376640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 606979376640 in words is "six hundred six billion, nine hundred seventy-nine million, three hundred seventy-six thousand, six hundred forty".