402066310613021 has 8 divisors (see below), whose sum is σ = 403628849272704. Its totient is φ = 400505542538400.

The previous prime is 402066310612969. The next prime is 402066310613029. The reversal of 402066310613021 is 120316013660204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402066310613021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402066310613029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442191221 + ... + 443099546.

It is an arithmetic number, because the mean of its divisors is an integer number (50453606159088).

Almost surely, 2^{402066310613021} is an apocalyptic number.

It is an amenable number.

402066310613021 is a deficient number, since it is larger than the sum of its proper divisors (1562538659683).

402066310613021 is a wasteful number, since it uses less digits than its factorization.

402066310613021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885292531.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 402066310613021 in words is "four hundred two trillion, sixty-six billion, three hundred ten million, six hundred thirteen thousand, twenty-one".