695909011680 has 240 divisors, whose sum is σ = 2489625818064. Its totient is φ = 183033354240.

The previous prime is 695909011667. The next prime is 695909011687. The reversal of 695909011680 is 86110909596.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695909011687) 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, 578295 + ... + 1313865.

Almost surely, 2^695909011680 is an apocalyptic number.

695909011680 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 695909011680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244812909032).

695909011680 is an abundant number, since it is smaller than the sum of its proper divisors (1793716806384).

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

695909011680 is a wasteful number, since it uses less digits than its factorization.

695909011680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735671 (or 735654 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 695909011680 in words is "six hundred ninety-five billion, nine hundred nine million, eleven thousand, six hundred eighty".