66430741737 has 32 divisors (see below), whose sum is σ = 93265643520. Its totient is φ = 41977900800.

The previous prime is 66430741723. The next prime is 66430741763. The reversal of 66430741737 is 73714703466.

It is not a de Polignac number, because 66430741737 - 2⁶ = 66430741673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66430741037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4357953 + ... + 4373169.

It is an arithmetic number, because the mean of its divisors is an integer number (2914551360).

Almost surely, 2^66430741737 is an apocalyptic number.

It is an amenable number.

66430741737 is a deficient number, since it is larger than the sum of its proper divisors (26834901783).

66430741737 is a wasteful number, since it uses less digits than its factorization.

66430741737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15813.

The product of its (nonzero) digits is 1778112, while the sum is 48.

The spelling of 66430741737 in words is "sixty-six billion, four hundred thirty million, seven hundred forty-one thousand, seven hundred thirty-seven".