1061601505500 has 96 divisors (see below), whose sum is σ = 3104211958848. Its totient is φ = 281918976000.

The previous prime is 1061601505487. The next prime is 1061601505513. The reversal of 1061601505500 is 55051061601.

It is an interprime number because it is at equal distance from previous prime (1061601505487) and next prime (1061601505513).

It is a super-2 number, since 2×1061601505500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1106829 + ... + 1829828.

It is an arithmetic number, because the mean of its divisors is an integer number (32335541238).

Almost surely, 2^{1061601505500} is an apocalyptic number.

1061601505500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061601505500 is an abundant number, since it is smaller than the sum of its proper divisors (2042610453348).

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

1061601505500 is a wasteful number, since it uses less digits than its factorization.

1061601505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936920 (or 2936908 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 1061601505500 in words is "one trillion, sixty-one billion, six hundred one million, five hundred five thousand, five hundred".