1165521201430 has 16 divisors (see below), whose sum is σ = 2100139583904. Its totient is φ = 465719275840.

The previous prime is 1165521201319. The next prime is 1165521201499. The reversal of 1165521201430 is 341021255611.

It is a junction number, because it is equal to n+sod(n) for n = 1165521201392 and 1165521201401.

It is a congruent number.

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, 61140586 + ... + 61159645.

It is an arithmetic number, because the mean of its divisors is an integer number (131258723994).

Almost surely, 2^{1165521201430} is an apocalyptic number.

1165521201430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165521201430 is a deficient number, since it is larger than the sum of its proper divisors (934618382474).

1165521201430 is a wasteful number, since it uses less digits than its factorization.

1165521201430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122301191.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 1165521201430 in words is "one trillion, one hundred sixty-five billion, five hundred twenty-one million, two hundred one thousand, four hundred thirty".