155714684449 has 9 divisors (see below), whose sum is σ = 157311942771. Its totient is φ = 154133494200.

The previous prime is 155714684431. The next prime is 155714684467. The reversal of 155714684449 is 944486417551.

The square root of 155714684449 is 394607.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (155714684431) and next prime (155714684467).

It can be written as a sum of positive squares in only one way, i.e., 149608824849 + 6105859600 = 386793^2 + 78140^2 .

It is not a de Polignac number, because 155714684449 - 2²⁹ = 155177813537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155714684393 and 155714684402.

It is not an unprimeable number, because it can be changed into a prime (155714684849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39853354 + ... + 39857260.

Almost surely, 2^155714684449 is an apocalyptic number.

155714684449 is the 394607-th square number.

155714684449 is the 197304-th centered octagonal number.

It is an amenable number.

155714684449 is a deficient number, since it is larger than the sum of its proper divisors (1597258322).

155714684449 is an frugal number, since it uses more digits than its factorization.

155714684449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016 (or 4008 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 58.

The spelling of 155714684449 in words is "one hundred fifty-five billion, seven hundred fourteen million, six hundred eighty-four thousand, four hundred forty-nine".