20150520342 has 16 divisors (see below), whose sum is σ = 42671690352. Its totient is φ = 6321731840.

The previous prime is 20150520329. The next prime is 20150520347. The reversal of 20150520342 is 24302505102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150520347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98776959 + ... + 98777162.

It is an arithmetic number, because the mean of its divisors is an integer number (2666980647).

Almost surely, 2^20150520342 is an apocalyptic number.

20150520342 is an abundant number, since it is smaller than the sum of its proper divisors (22521170010).

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

20150520342 is a wasteful number, since it uses less digits than its factorization.

20150520342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197554143.

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 20150520342 in words is "twenty billion, one hundred fifty million, five hundred twenty thousand, three hundred forty-two".