1581648060 has 48 divisors (see below), whose sum is σ = 4430343456. Its totient is φ = 421608192.

The previous prime is 1581648053. The next prime is 1581648067. The reversal of 1581648060 is 608461851.

It is an interprime number because it is at equal distance from previous prime (1581648053) and next prime (1581648067).

It is a super-2 number, since 2×1581648060² = 5003221171403527200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1581648067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286042 + ... + 291518.

It is an arithmetic number, because the mean of its divisors is an integer number (92298822).

Almost surely, 2^1581648060 is an apocalyptic number.

1581648060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1581648060 is an abundant number, since it is smaller than the sum of its proper divisors (2848695396).

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

1581648060 is a wasteful number, since it uses less digits than its factorization.

1581648060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302 (or 10300 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1581648060 is about 39769.9391500666. The cubic root of 1581648060 is about 1165.1181052631.

The spelling of 1581648060 in words is "one billion, five hundred eighty-one million, six hundred forty-eight thousand, sixty".