101601560 has 32 divisors (see below), whose sum is σ = 228962160. Its totient is φ = 40576896.

The previous prime is 101601553. The next prime is 101601613. The reversal of 101601560 is 65106101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 30287 + ... + 33473.

Almost surely, 2^101601560 is an apocalyptic number.

101601560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101601560 is an abundant number, since it is smaller than the sum of its proper divisors (127360600).

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

101601560 is a wasteful number, since it uses less digits than its factorization.

101601560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 101601560 is about 10079.7599177758. The cubic root of 101601560 is about 466.6236989918.

101601560 divided by its sum of digits (20) gives a triangular number (5080078 = T₃₁₈₇).

Adding to 101601560 its reverse (65106101), we get a palindrome (166707661).

The spelling of 101601560 in words is "one hundred one million, six hundred one thousand, five hundred sixty".