1245355353551 has 8 divisors (see below), whose sum is σ = 1299512970240. Its totient is φ = 1191198714552.

The previous prime is 1245355353511. The next prime is 1245355353569. The reversal of 1245355353551 is 1553535535421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245355353551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245355353496 and 1245355353505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245355353511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3742106 + ... + 4061288.

It is an arithmetic number, because the mean of its divisors is an integer number (162439121280).

Almost surely, 2^{1245355353551} is an apocalyptic number.

1245355353551 is a deficient number, since it is larger than the sum of its proper divisors (54157616689).

1245355353551 is a wasteful number, since it uses less digits than its factorization.

1245355353551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488845.

The product of its digits is 3375000, while the sum is 47.

The spelling of 1245355353551 in words is "one trillion, two hundred forty-five billion, three hundred fifty-five million, three hundred fifty-three thousand, five hundred fifty-one".