160661004 has 36 divisors (see below), whose sum is σ = 436081464. Its totient is φ = 45902976.

The previous prime is 160660991. The next prime is 160661009. The reversal of 160661004 is 400166061.

160661004 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (160661009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136029 + ... + 137204.

It is an arithmetic number, because the mean of its divisors is an integer number (12113374).

Almost surely, 2^160661004 is an apocalyptic number.

160661004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

160661004 is an abundant number, since it is smaller than the sum of its proper divisors (275420460).

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

160661004 is a wasteful number, since it uses less digits than its factorization.

160661004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273254 (or 273245 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 160661004 is about 12675.2121875730. The cubic root of 160661004 is about 543.6300965371.

The spelling of 160661004 in words is "one hundred sixty million, six hundred sixty-one thousand, four".