2451201535556 has 24 divisors (see below), whose sum is σ = 4428795603456. Its totient is φ = 1185845981760.

The previous prime is 2451201535547. The next prime is 2451201535663. The reversal of 2451201535556 is 6555351021542.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152896 + ... + 2496311.

It is an arithmetic number, because the mean of its divisors is an integer number (184533150144).

Almost surely, 2^{2451201535556} is an apocalyptic number.

It is an amenable number.

2451201535556 is a deficient number, since it is larger than the sum of its proper divisors (1977594067900).

2451201535556 is a wasteful number, since it uses less digits than its factorization.

2451201535556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654659 (or 3654657 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 2451201535556 in words is "two trillion, four hundred fifty-one billion, two hundred one million, five hundred thirty-five thousand, five hundred fifty-six".