402664020007 has 2 divisors, whose sum is σ = 402664020008. Its totient is φ = 402664020006.

The previous prime is 402664019999. The next prime is 402664020013. The reversal of 402664020007 is 700020466204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402664020007 - 2³ = 402664019999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402664020907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201332010003 + 201332010004.

It is an arithmetic number, because the mean of its divisors is an integer number (201332010004).

Almost surely, 2^402664020007 is an apocalyptic number.

402664020007 is a deficient number, since it is larger than the sum of its proper divisors (1).

402664020007 is an equidigital number, since it uses as much as digits as its factorization.

402664020007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 402664020007 in words is "four hundred two billion, six hundred sixty-four million, twenty thousand, seven".