20154435052 has 6 divisors (see below), whose sum is σ = 35270261348. Its totient is φ = 10077217524.

The previous prime is 20154435047. The next prime is 20154435061. The reversal of 20154435052 is 25053445102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2519304378 + ... + 2519304385.

Almost surely, 2^20154435052 is an apocalyptic number.

It is an amenable number.

20154435052 is a deficient number, since it is larger than the sum of its proper divisors (15115826296).

20154435052 is a wasteful number, since it uses less digits than its factorization.

20154435052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038608767 (or 5038608765 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 20154435052 in words is "twenty billion, one hundred fifty-four million, four hundred thirty-five thousand, fifty-two".