69697345536 has 960 divisors, whose sum is σ = 270817747200. Its totient is φ = 17414258688.

The previous prime is 69697345499. The next prime is 69697345541. The reversal of 69697345536 is 63554379696.

69697345536 is a `hidden beast` number, since 6 + 9 + 6 + 9 + 73 + 4 + 553 + 6 = 666.

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 79 ways as a sum of consecutive naturals, for example, 3668281335 + ... + 3668281353.

It is an arithmetic number, because the mean of its divisors is an integer number (282101820).

Almost surely, 2^69697345536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69697345536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135408873600).

69697345536 is an abundant number, since it is smaller than the sum of its proper divisors (201120401664).

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

69697345536 is an frugal number, since it uses more digits than its factorization.

69697345536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 44 counting only the distinct ones).

The product of its digits is 110224800, while the sum is 63.

The spelling of 69697345536 in words is "sixty-nine billion, six hundred ninety-seven million, three hundred forty-five thousand, five hundred thirty-six".