66471516232374 has 16 divisors (see below), whose sum is σ = 145028762688960. Its totient is φ = 20142883706760.

The previous prime is 66471516232337. The next prime is 66471516232409. The reversal of 66471516232374 is 47323261517466.

It is a happy number.

It is a congruent number.

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, 503572092604 + ... + 503572092735.

It is an arithmetic number, because the mean of its divisors is an integer number (9064297668060).

Almost surely, 2^{66471516232374} is an apocalyptic number.

66471516232374 is an abundant number, since it is smaller than the sum of its proper divisors (78557246456586).

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

66471516232374 is a wasteful number, since it uses less digits than its factorization.

66471516232374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007144185355.

The product of its digits is 30481920, while the sum is 57.

The spelling of 66471516232374 in words is "sixty-six trillion, four hundred seventy-one billion, five hundred sixteen million, two hundred thirty-two thousand, three hundred seventy-four".