1225416433851 has 6 divisors (see below), whose sum is σ = 1770045960020. Its totient is φ = 816944289228.

The previous prime is 1225416433847. The next prime is 1225416433889. The reversal of 1225416433851 is 1583346145221.

1225416433851 is a `hidden beast` number, since 1 + 2 + 254 + 1 + 64 + 338 + 5 + 1 = 666.

It is not a de Polignac number, because 1225416433851 - 2² = 1225416433847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225416433797 and 1225416433806.

It is not an unprimeable number, because it can be changed into a prime (1225416433831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68078690761 + ... + 68078690778.

Almost surely, 2^{1225416433851} is an apocalyptic number.

1225416433851 is a deficient number, since it is larger than the sum of its proper divisors (544629526169).

1225416433851 is a wasteful number, since it uses less digits than its factorization.

1225416433851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136157381545 (or 136157381542 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 1225416433851 in words is "one trillion, two hundred twenty-five billion, four hundred sixteen million, four hundred thirty-three thousand, eight hundred fifty-one".