669077038080 has 704 divisors, whose sum is σ = 2612234016000. Its totient is φ = 161057341440.

The previous prime is 669077038061. The next prime is 669077038111. The reversal of 669077038080 is 80830770966.

It is a tau number, because it is divible by the number of its divisors (704).

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226573884 + ... + 226576836.

Almost surely, 2^669077038080 is an apocalyptic number.

669077038080 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 669077038080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306117008000).

669077038080 is an abundant number, since it is smaller than the sum of its proper divisors (1943156977920).

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

669077038080 is a wasteful number, since it uses less digits than its factorization.

669077038080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 669077038080 in words is "six hundred sixty-nine billion, seventy-seven million, thirty-eight thousand, eighty".