1551566161050 has 24 divisors (see below), whose sum is σ = 3847884079776. Its totient is φ = 413750976240.

The previous prime is 1551566161009. The next prime is 1551566161069. The reversal of 1551566161050 is 501616651551.

It is a junction number, because it is equal to n+sod(n) for n = 1551566160993 and 1551566161011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5171887054 + ... + 5171887353.

It is an arithmetic number, because the mean of its divisors is an integer number (160328503324).

Almost surely, 2^{1551566161050} is an apocalyptic number.

1551566161050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1551566161050 is an abundant number, since it is smaller than the sum of its proper divisors (2296317918726).

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

1551566161050 is a wasteful number, since it uses less digits than its factorization.

1551566161050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10343774422 (or 10343774417 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 1551566161050 in words is "one trillion, five hundred fifty-one billion, five hundred sixty-six million, one hundred sixty-one thousand, fifty".