667701401148 has 96 divisors (see below), whose sum is σ = 1776789000000. Its totient is φ = 216711336960.

The previous prime is 667701401137. The next prime is 667701401167. The reversal of 667701401148 is 841104107766.

It is a super-2 number, since 2×667701401148² (a number of 24 digits) contains 22 as substring.

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, 2105728 + ... + 2401976.

It is an arithmetic number, because the mean of its divisors is an integer number (18508218750).

Almost surely, 2^667701401148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667701401148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888394500000).

667701401148 is an abundant number, since it is smaller than the sum of its proper divisors (1109087598852).

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

667701401148 is a wasteful number, since it uses less digits than its factorization.

667701401148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296812 (or 296804 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 667701401148 in words is "six hundred sixty-seven billion, seven hundred one million, four hundred one thousand, one hundred forty-eight".