1316626455 has 16 divisors (see below), whose sum is σ = 2230520544. Its totient is φ = 660894720.

The previous prime is 1316626439. The next prime is 1316626459. The reversal of 1316626455 is 5546266131.

It is not a de Polignac number, because 1316626455 - 2⁴ = 1316626439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316626459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2581366 + ... + 2581875.

It is an arithmetic number, because the mean of its divisors is an integer number (139407534).

Almost surely, 2^1316626455 is an apocalyptic number.

1316626455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1316626455 is a deficient number, since it is larger than the sum of its proper divisors (913894089).

1316626455 is a wasteful number, since it uses less digits than its factorization.

1316626455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163266.

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

The square root of 1316626455 is about 36285.3476626585. The cubic root of 1316626455 is about 1096.0260060850.

It can be divided in two parts, 13166 and 26455, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 1316626455 in words is "one billion, three hundred sixteen million, six hundred twenty-six thousand, four hundred fifty-five".