148777664 has 56 divisors (see below), whose sum is σ = 338803488. Its totient is φ = 63498240.

The previous prime is 148777663. The next prime is 148777691. The reversal of 148777664 is 466777841.

148777664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (148777663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139694 + ... + 140754.

Almost surely, 2^148777664 is an apocalyptic number.

148777664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148777664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169401744).

148777664 is an abundant number, since it is smaller than the sum of its proper divisors (190025824).

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

148777664 is a wasteful number, since it uses less digits than its factorization.

148777664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1383 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 148777664 is about 12197.4449783551. Note that the first 3 decimals coincide. The cubic root of 148777664 is about 529.8820955243.

The spelling of 148777664 in words is "one hundred forty-eight million, seven hundred seventy-seven thousand, six hundred sixty-four".