1520163372 has 96 divisors (see below), whose sum is σ = 4385382400. Its totient is φ = 399105792.

The previous prime is 1520163367. The next prime is 1520163401. The reversal of 1520163372 is 2733610251.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247029 + ... + 253107.

Almost surely, 2^1520163372 is an apocalyptic number.

1520163372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520163372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2192691200).

1520163372 is an abundant number, since it is smaller than the sum of its proper divisors (2865219028).

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

1520163372 is a wasteful number, since it uses less digits than its factorization.

1520163372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1520163372 is about 38989.2725246317. The cubic root of 1520163372 is about 1149.8206076822.

The spelling of 1520163372 in words is "one billion, five hundred twenty million, one hundred sixty-three thousand, three hundred seventy-two".