2145156234402 has 16 divisors (see below), whose sum is σ = 4306143883392. Its totient is φ = 712413509040.

The previous prime is 2145156234379. The next prime is 2145156234409. The reversal of 2145156234402 is 2044326515412.

It is not an unprimeable number, because it can be changed into a prime (2145156234409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 659640513 + ... + 659643764.

It is an arithmetic number, because the mean of its divisors is an integer number (269133992712).

Almost surely, 2^{2145156234402} is an apocalyptic number.

2145156234402 is an abundant number, since it is smaller than the sum of its proper divisors (2160987648990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145156234402 is a wasteful number, since it uses less digits than its factorization.

2145156234402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319284553.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 2145156234402 in words is "two trillion, one hundred forty-five billion, one hundred fifty-six million, two hundred thirty-four thousand, four hundred two".