1555630132057 has 12 divisors (see below), whose sum is σ = 1579833742080. Its totient is φ = 1531789234848.

The previous prime is 1555630132037. The next prime is 1555630132073. The reversal of 1555630132057 is 7502310365551.

It is not a de Polignac number, because 1555630132057 - 2¹¹ = 1555630130009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1555630132037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2994244 + ... + 3475162.

It is an arithmetic number, because the mean of its divisors is an integer number (131652811840).

Almost surely, 2^{1555630132057} is an apocalyptic number.

It is an amenable number.

1555630132057 is a deficient number, since it is larger than the sum of its proper divisors (24203610023).

1555630132057 is an frugal number, since it uses more digits than its factorization.

1555630132057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481672 (or 481599 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 43.

The spelling of 1555630132057 in words is "one trillion, five hundred fifty-five billion, six hundred thirty million, one hundred thirty-two thousand, fifty-seven".