66670000040046 has 32 divisors (see below), whose sum is σ = 152043800999328. Its totient is φ = 19307149332480.

The previous prime is 66670000039969. The next prime is 66670000040047. The reversal of 66670000040046 is 64004000007666.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 66670000039986 and 66670000040013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66670000040047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25139516035 + ... + 25139518686.

It is an arithmetic number, because the mean of its divisors is an integer number (4751368781229).

Almost surely, 2^{66670000040046} is an apocalyptic number.

66670000040046 is an abundant number, since it is smaller than the sum of its proper divisors (85373800959282).

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

66670000040046 is a wasteful number, since it uses less digits than its factorization.

66670000040046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50279034756.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 66670000040046 in words is "sixty-six trillion, six hundred seventy billion, forty thousand, forty-six".