20614228436 has 6 divisors (see below), whose sum is σ = 36074899770. Its totient is φ = 10307114216.

The previous prime is 20614228409. The next prime is 20614228447. The reversal of 20614228436 is 63482241602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17961360400 + 2652868036 = 134020^2 + 51506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20614228436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2576778551 + ... + 2576778558.

It is an arithmetic number, because the mean of its divisors is an integer number (6012483295).

Almost surely, 2^20614228436 is an apocalyptic number.

It is an amenable number.

20614228436 is a deficient number, since it is larger than the sum of its proper divisors (15460671334).

20614228436 is a wasteful number, since it uses less digits than its factorization.

20614228436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153557113 (or 5153557111 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 20614228436 in words is "twenty billion, six hundred fourteen million, two hundred twenty-eight thousand, four hundred thirty-six".