20616356514 has 16 divisors (see below), whose sum is σ = 44404460352. Its totient is φ = 6343494288.

The previous prime is 20616356473. The next prime is 20616356531. The reversal of 20616356514 is 41565361602.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132156054 + ... + 132156209.

It is an arithmetic number, because the mean of its divisors is an integer number (2775278772).

Almost surely, 2^20616356514 is an apocalyptic number.

20616356514 is an abundant number, since it is smaller than the sum of its proper divisors (23788103838).

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

20616356514 is a wasteful number, since it uses less digits than its factorization.

20616356514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264312281.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 20616356514 in words is "twenty billion, six hundred sixteen million, three hundred fifty-six thousand, five hundred fourteen".