2164640343753 has 16 divisors (see below), whose sum is σ = 2979446091776. Its totient is φ = 1396468959120.

The previous prime is 2164640343743. The next prime is 2164640343757. The reversal of 2164640343753 is 3573430464612.

It is a happy number.

It is not a de Polignac number, because 2164640343753 - 2⁵ = 2164640343721 is a prime.

It is a super-2 number, since 2×2164640343753² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164640343757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202700 + ... + 2403282.

It is an arithmetic number, because the mean of its divisors is an integer number (186215380736).

Almost surely, 2^{2164640343753} is an apocalyptic number.

It is an amenable number.

2164640343753 is a deficient number, since it is larger than the sum of its proper divisors (814805748023).

2164640343753 is a wasteful number, since it uses less digits than its factorization.

2164640343753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220004.

The product of its (nonzero) digits is 4354560, while the sum is 48.

The spelling of 2164640343753 in words is "two trillion, one hundred sixty-four billion, six hundred forty million, three hundred forty-three thousand, seven hundred fifty-three".