1425366561402 has 168 divisors, whose sum is σ = 3792187108800. Its totient is φ = 400343903568.

The previous prime is 1425366561373. The next prime is 1425366561413. The reversal of 1425366561402 is 2041656635241.

1425366561402 is a `hidden beast` number, since 1 + 4 + 25 + 3 + 6 + 6 + 5 + 614 + 0 + 2 = 666.

It is a super-2 number, since 2×1425366561402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 4045999 + ... + 4384157.

Almost surely, 2^{1425366561402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425366561402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896093554400).

1425366561402 is an abundant number, since it is smaller than the sum of its proper divisors (2366820547398).

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

1425366561402 is an equidigital number, since it uses as much as digits as its factorization.

1425366561402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338252 (or 338230 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 1425366561402 in words is "one trillion, four hundred twenty-five billion, three hundred sixty-six million, five hundred sixty-one thousand, four hundred two".