74000066720 has 48 divisors (see below), whose sum is σ = 175219964640. Its totient is φ = 29533181184.

The previous prime is 74000066719. The next prime is 74000066743. The reversal of 74000066720 is 2766000047.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451130 + ... + 592889.

It is an arithmetic number, because the mean of its divisors is an integer number (3650415930).

Almost surely, 2^74000066720 is an apocalyptic number.

It is an amenable number.

74000066720 is an abundant number, since it is smaller than the sum of its proper divisors (101219897920).

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

74000066720 is a wasteful number, since it uses less digits than its factorization.

74000066720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044477 (or 1044469 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

Adding to 74000066720 its reverse (2766000047), we get a palindrome (76766066767).

The spelling of 74000066720 in words is "seventy-four billion, sixty-six thousand, seven hundred twenty".