676995157440 has 448 divisors, whose sum is σ = 2757635328000. Its totient is φ = 153145147392.

The previous prime is 676995157339. The next prime is 676995157441. The reversal of 676995157440 is 44751599676.

676995157440 is a `hidden beast` number, since 6 + 7 + 6 + 9 + 9 + 51 + 574 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676995157441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5808861 + ... + 5924259.

It is an arithmetic number, because the mean of its divisors is an integer number (6155436000).

Almost surely, 2^676995157440 is an apocalyptic number.

676995157440 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 676995157440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378817664000).

676995157440 is an abundant number, since it is smaller than the sum of its proper divisors (2080640170560).

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

676995157440 is a wasteful number, since it uses less digits than its factorization.

676995157440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115529 (or 115513 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 676995157440 in words is "six hundred seventy-six billion, nine hundred ninety-five million, one hundred fifty-seven thousand, four hundred forty".