20513152150 has 48 divisors (see below), whose sum is σ = 39624767424. Its totient is φ = 7894766880.

The previous prime is 20513152147. The next prime is 20513152169. The reversal of 20513152150 is 5125131502.

It is a super-2 number, since 2×20513152150² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72849 + ... + 215251.

It is an arithmetic number, because the mean of its divisors is an integer number (825515988).

Almost surely, 2^20513152150 is an apocalyptic number.

20513152150 is a deficient number, since it is larger than the sum of its proper divisors (19111615274).

20513152150 is a wasteful number, since it uses less digits than its factorization.

20513152150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142525 (or 142520 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 20513152150 its reverse (5125131502), we get a palindrome (25638283652).

The spelling of 20513152150 in words is "twenty billion, five hundred thirteen million, one hundred fifty-two thousand, one hundred fifty".