4721336416666 has 4 divisors (see below), whose sum is σ = 7082004625002. Its totient is φ = 2360668208332.

The previous prime is 4721336416663. The next prime is 4721336416759. The reversal of 4721336416666 is 6666146331274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4720342843225 + 993573441 = 2172635^2 + 31521^2 .

It is not an unprimeable number, because it can be changed into a prime (4721336416663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1180334104165 + ... + 1180334104168.

Almost surely, 2^{4721336416666} is an apocalyptic number.

4721336416666 is a deficient number, since it is larger than the sum of its proper divisors (2360668208336).

4721336416666 is a wasteful number, since it uses less digits than its factorization.

4721336416666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360668208335.

The product of its digits is 15676416, while the sum is 55.

The spelling of 4721336416666 in words is "four trillion, seven hundred twenty-one billion, three hundred thirty-six million, four hundred sixteen thousand, six hundred sixty-six".