163140265351 has 4 divisors (see below), whose sum is σ = 186446017552. Its totient is φ = 139834513152.

The previous prime is 163140265303. The next prime is 163140265381. The reversal of 163140265351 is 153562041361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153562041361 = 286421 ⋅536141.

It is a cyclic number.

It is not a de Polignac number, because 163140265351 - 2²⁷ = 163006047623 is a prime.

It is a super-2 number, since 2×163140265351² (a number of 23 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 163140265351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163140265381) 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, 11652876090 + ... + 11652876103.

It is an arithmetic number, because the mean of its divisors is an integer number (46611504388).

Almost surely, 2^163140265351 is an apocalyptic number.

163140265351 is a deficient number, since it is larger than the sum of its proper divisors (23305752201).

163140265351 is an equidigital number, since it uses as much as digits as its factorization.

163140265351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23305752200.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 163140265351 in words is "one hundred sixty-three billion, one hundred forty million, two hundred sixty-five thousand, three hundred fifty-one".