16394764697401 has 4 divisors (see below), whose sum is σ = 16396002892404. Its totient is φ = 16393526502400.

The previous prime is 16394764697369. The next prime is 16394764697461. The reversal of 16394764697401 is 10479646749361.

16394764697401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14323583191801 + 2071181505600 = 3784651^2 + 1439160^2 .

It is a cyclic number.

It is not a de Polignac number, because 16394764697401 - 2⁵ = 16394764697369 is a prime.

It is a super-2 number, since 2×16394764697401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16394764697461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619077640 + ... + 619104121.

It is an arithmetic number, because the mean of its divisors is an integer number (4099000723101).

Almost surely, 2^{16394764697401} is an apocalyptic number.

It is an amenable number.

16394764697401 is a deficient number, since it is larger than the sum of its proper divisors (1238195003).

16394764697401 is a wasteful number, since it uses less digits than its factorization.

16394764697401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238195002.

The product of its (nonzero) digits is 164602368, while the sum is 67.

The spelling of 16394764697401 in words is "sixteen trillion, three hundred ninety-four billion, seven hundred sixty-four million, six hundred ninety-seven thousand, four hundred one".