2164406644031 has 8 divisors (see below), whose sum is σ = 2258676572544. Its totient is φ = 2070150489880.

The previous prime is 2164406643979. The next prime is 2164406644033. The reversal of 2164406644031 is 1304466044612.

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

It is a cyclic number.

It is not a de Polignac number, because 2164406644031 - 2⁶ = 2164406643967 is a prime.

It is a super-2 number, since 2×2164406644031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164406644031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164406644033) 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, 3121841 + ... + 3751626.

It is an arithmetic number, because the mean of its divisors is an integer number (282334571568).

Almost surely, 2^{2164406644031} is an apocalyptic number.

2164406644031 is a deficient number, since it is larger than the sum of its proper divisors (94269928513).

2164406644031 is a wasteful number, since it uses less digits than its factorization.

2164406644031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6887181.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 2164406644031 in words is "two trillion, one hundred sixty-four billion, four hundred six million, six hundred forty-four thousand, thirty-one".