2145661503142 has 8 divisors (see below), whose sum is σ = 3218670155736. Its totient is φ = 1072771451232.

The previous prime is 2145661503131. The next prime is 2145661503157. The reversal of 2145661503142 is 2413051665412.

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

It is a junction number, because it is equal to n+sod(n) for n = 2145661503095 and 2145661503104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29604928 + ... + 29677315.

It is an arithmetic number, because the mean of its divisors is an integer number (402333769467).

Almost surely, 2^{2145661503142} is an apocalyptic number.

2145661503142 is a deficient number, since it is larger than the sum of its proper divisors (1073008652594).

2145661503142 is a wasteful number, since it uses less digits than its factorization.

2145661503142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59300342.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 2145661503142 in words is "two trillion, one hundred forty-five billion, six hundred sixty-one million, five hundred three thousand, one hundred forty-two".