721429364366 has 16 divisors (see below), whose sum is σ = 1086130805760. Its totient is φ = 359386083840.

The previous prime is 721429364363. The next prime is 721429364371. The reversal of 721429364366 is 663463924127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721429364363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4671230 + ... + 4823198.

It is an arithmetic number, because the mean of its divisors is an integer number (67883175360).

Almost surely, 2^721429364366 is an apocalyptic number.

721429364366 is a deficient number, since it is larger than the sum of its proper divisors (364701441394).

721429364366 is a wasteful number, since it uses less digits than its factorization.

721429364366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160699.

The product of its digits is 7838208, while the sum is 53.

The spelling of 721429364366 in words is "seven hundred twenty-one billion, four hundred twenty-nine million, three hundred sixty-four thousand, three hundred sixty-six".