1255416684420 has 96 divisors (see below), whose sum is σ = 3822534350208. Its totient is φ = 306569152512.

The previous prime is 1255416684373. The next prime is 1255416684503. The reversal of 1255416684420 is 244866145521.

It is a self number, because there is not a number n which added to its sum of digits gives 1255416684420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16594702 + ... + 16670181.

It is an arithmetic number, because the mean of its divisors is an integer number (39818066148).

Almost surely, 2^{1255416684420} is an apocalyptic number.

1255416684420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255416684420 is an abundant number, since it is smaller than the sum of its proper divisors (2567117665788).

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

1255416684420 is a wasteful number, since it uses less digits than its factorization.

1255416684420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33264949 (or 33264947 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 1255416684420 in words is "one trillion, two hundred fifty-five billion, four hundred sixteen million, six hundred eighty-four thousand, four hundred twenty".