10643620321405 has 16 divisors (see below), whose sum is σ = 12786982078464. Its totient is φ = 8505143337600.

The previous prime is 10643620321337. The next prime is 10643620321457. The reversal of 10643620321405 is 50412302634601.

It is not a de Polignac number, because 10643620321405 - 2¹⁹ = 10643619797117 is a prime.

It is a super-2 number, since 2×10643620321405² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15097537 + ... + 15786793.

It is an arithmetic number, because the mean of its divisors is an integer number (799186379904).

Almost surely, 2^{10643620321405} is an apocalyptic number.

It is an amenable number.

10643620321405 is a deficient number, since it is larger than the sum of its proper divisors (2143361757059).

10643620321405 is a wasteful number, since it uses less digits than its factorization.

10643620321405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692796.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 10643620321405 in words is "ten trillion, six hundred forty-three billion, six hundred twenty million, three hundred twenty-one thousand, four hundred five".