2153663771402 has 16 divisors (see below), whose sum is σ = 3795267625632. Its totient is φ = 903635148720.

The previous prime is 2153663771387. The next prime is 2153663771411. The reversal of 2153663771402 is 2041773663512.

It is a happy number.

It is a super-2 number, since 2×2153663771402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3765146168 + ... + 3765146739.

It is an arithmetic number, because the mean of its divisors is an integer number (237204226602).

Almost surely, 2^{2153663771402} is an apocalyptic number.

2153663771402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2153663771402 is a deficient number, since it is larger than the sum of its proper divisors (1641603854230).

2153663771402 is a wasteful number, since it uses less digits than its factorization.

2153663771402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530292933.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 2153663771402 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, seven hundred seventy-one thousand, four hundred two".