1626005366401 has 12 divisors (see below), whose sum is σ = 1761474329472. Its totient is φ = 1500271387056.

The previous prime is 1626005366389. The next prime is 1626005366411. The reversal of 1626005366401 is 1046635006261.

It is not a de Polignac number, because 1626005366401 - 2⁷ = 1626005366273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1626005366411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1716981 + ... + 2489986.

It is an arithmetic number, because the mean of its divisors is an integer number (146789527456).

Almost surely, 2^{1626005366401} is an apocalyptic number.

It is an amenable number.

1626005366401 is a deficient number, since it is larger than the sum of its proper divisors (135468963071).

1626005366401 is a wasteful number, since it uses less digits than its factorization.

1626005366401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209280 (or 4209267 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 1626005366401 in words is "one trillion, six hundred twenty-six billion, five million, three hundred sixty-six thousand, four hundred one".